Pipeworx disify

Detect disposable and temporary email addresses — validate emails and check domains against known throwaway services

Security Scan

The skill is an instruction-only wrapper for a disposable-email checking service (pipeworx/disify); its requirements and instructions are generally consistent with that purpose, with a minor documentation gap about using npx/mcp-remote.

Purpose & Capability

Name/description match the runtime instructions: the SKILL.md shows examples calling the pipeworx disify gateway to validate emails and check domains. Requested binaries (curl) are appropriate for calling the service.

Instruction Scope

Instructions are limited to calling the external API (https://gateway.pipeworx.io/disify/mcp) and show example JSON responses. The MCP config example references running 'npx mcp-remote@latest ...' which would download/execute an npm package — that runtime dependency is not declared in the top-level required-bins list (only curl is declared). Apart from that mismatch, the instructions do not ask the agent to read local files or unrelated credentials.

Install Mechanism

There is no install spec (instruction-only), which is low risk. However the provided MCP config example implies using npx to fetch mcp-remote from the npm registry, which would pull and run third-party code at runtime; this is not expressed in the install metadata and is an operational consideration (network + npm access) rather than an explicit install step.

Credentials

The skill declares no required environment variables, credentials, or config paths, which is proportional to a network-only email-validation helper. No unrelated secrets are requested.

Persistence & Privilege

always is false and the skill is user-invocable; it does not request elevated or persistent platform presence. No modifications of other skills or system-wide config are requested.

Assessment

This skill is an instruction-only integration that calls an external Pipeworx gateway to check whether emails/domains are disposable. Before installing: 1) Confirm you are comfortable sending email addresses (potentially sensitive PII) to https://gateway.pipeworx.io — check privacy policy and TLS. 2) Note the SKILL.md example includes an MCP config that uses 'npx mcp-remote@latest', which would download and execute code from npm at runtime; if you plan to use that flow, ensure you trust the npm package and your environment permits/limits such downloads. 3) Verify rate limits, error handling, and any costs of the external API. 4) If you prefer to avoid third-party execution, use the shown curl examples directly (curl is the only declared required binary). 5) The SKILL.md omits declaring 'npx' as a required binary despite showing it in examples — treat that as a documentation inconsistency and confirm runtime requirements before deployment.

Disify — Disposable Email Detection

Is that email real or a throwaway? Disify checks email addresses and domains against a database of known disposable email services like Mailinator, Guerrilla Mail, and Temp Mail. Useful for form validation, anti-fraud, and user quality checks.

Tools

• validate_email — Check if an email address is disposable or malformed. Returns format validity and disposable status.
• check_domain — Check if a domain is associated with disposable email services (e.g., "mailinator.com").

When to use

• Validating sign-up forms to block throwaway emails
• Screening lead generation forms for quality
• Checking if a domain in your user database is disposable
• Anti-abuse pipelines that need to flag temporary email usage

Example

curl -s -X POST https://gateway.pipeworx.io/disify/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"validate_email","arguments":{"email":"[e-mail]"}}}'

{
  "email": "[e-mail]",
  "format_valid": true,
  "disposable": true,
  "domain": "mailinator.com"
}

MCP config

{
  "mcpServers": {
    "pipeworx-disify": {
      "command": "npx",
      "args": ["-y", "mcp-remote@latest", "https://gateway.pipeworx.io/disify/mcp"]
    }
  }
}